Be festive. Colours! Love! Spring!

holi.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+
+from datetime import datetime
+from bs4 import BeautifulSoup
+from urllib.request import urlopen
+from subprocess import check_output
+
+atf = '%a %b %d %H:%M:00 %Y'
+
+with urlopen('https://en.wikipedia.org/w/index.php?title=Holi') as web:
+    soup = BeautifulSoup(web.read(), 'html.parser')
+
+table = soup.find('table', attrs={'class': 'infobox'}).find('tbody')
+dates = dict()
+today = datetime.now()
+
+months = '''
+January
+February
+March
+April
+May
+June
+July
+August
+September
+October
+November
+December
+'''.strip().split()
+
+for tr in table.find_all('tr'):
+    try:
+        year = tr.find('th').text.strip()
+        if not year.endswith('date'):
+            continue
+        year = int(year[:-4].strip())
+
+        daymonth = tr.find('td')
+        for e in daymonth.find_all('sup'):
+            e.extract()
+        daymonth = daymonth.text.strip().split()
+        day = int(daymonth[0])
+        month = months.index(daymonth[1]) + 1
+    except:
+        continue
+    date = datetime(year=year, month=month, day=day, hour=0, minute=0)
+    if date > today:
+        dates[date.strftime(atf)] = date.strftime('%H:%M %B %d %Y')
+
+at_letter = 'i'
+
+atd = filter(None, check_output(['atq', '-q', at_letter]).decode().strip().split('\n'))
+atd = set(' '.join(d.split('\t')[1].split(' ')[:-2]) for d in atd)
+
+for date in map(dates.get, set(dates) - atd):
+    text = '/home/zgrep/offtopiabday/exclaimheart Holi mubārāk'
+    print(f'Scheduling {text} at {date}.')
+    try:
+        check_output(['at', '-q', at_letter, date], universal_newlines=True, input=text)
+    except:
+        print('Failed.')